package com.leyou.item.mapper;

import com.leyou.item.pojo.Brand;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;
import tk.mybatis.mapper.common.Mapper;

import java.util.List;

public interface BrandMapper extends Mapper<Brand> {
    /**
     * 新增商品分类和品牌中间表数据
     * @param cid
     * @param id
     */
    @Insert("INSERT INTO tb_category_brand(category_id,brand_id) VALUES (#{cid},#{id})")
    void insterCategoryAndBrand(@Param("cid") Long cid, @Param("id") Long id);

    /**
     * 根据分类查询品牌
     * @param cid
     * @return
     */
    @Select("SELECT b.* from tb_brand b INNER JOIN tb_category_brand cb on b.id=cb.brand_id where cb.category_id=#{cid}")
    List<Brand> selectBrandByCid(Long cid);

}
